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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,160 @@ | ||
| package net.oijon.algonquin.tts.trm; | ||
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| import java.io.ByteArrayInputStream; | ||
| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.util.Arrays; | ||
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| import javax.sound.sampled.AudioFileFormat; | ||
| import javax.sound.sampled.AudioFormat; | ||
| import javax.sound.sampled.AudioInputStream; | ||
| import javax.sound.sampled.AudioSystem; | ||
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| // Highly experimental. | ||
| public class TRM { | ||
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| public static void makeTestSound() throws IOException { | ||
| final double sampleRate = 44100.0; | ||
| final double frequency = 440; | ||
| final double frequency2 = 90; | ||
| final double amplitude = 1.0; | ||
| final double seconds = 2.0; | ||
| final double twoPiF = 2 * Math.PI * frequency; | ||
| final double piF = Math.PI * frequency2; | ||
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| float[] buffer = new float[(int)(seconds * sampleRate)]; | ||
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| for (int sample = 0; sample < buffer.length; sample++) { | ||
| double time = sample / sampleRate; | ||
| buffer[sample] = (float)(amplitude * Math.cos(piF * time) * Math.sin(twoPiF * time)); | ||
| } | ||
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| final byte[] byteBuffer = new byte[buffer.length * 2]; | ||
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| int bufferIndex = 0; | ||
| for (int i = 0; i < byteBuffer.length; i++) { | ||
| final int x = (int)(buffer[bufferIndex++] * 32767.0); | ||
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| byteBuffer[i++] = (byte)x; | ||
| byteBuffer[i] = (byte)(x >>> 8); | ||
| } | ||
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| if (new File(System.getProperty("user.home") + "/AlgonquinTTS").exists() == false) { | ||
| new File(System.getProperty("user.home") + "/AlgonquinTTS").mkdir(); | ||
| } | ||
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| File out = new File(System.getProperty("user.home") + "/AlgonquinTTS/out10.wav"); | ||
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| final boolean bigEndian = false; | ||
| final boolean signed = true; | ||
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| final int bits = 16; | ||
| final int channels = 1; | ||
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| AudioFormat format = new AudioFormat((float)sampleRate, bits, channels, signed, bigEndian); | ||
| ByteArrayInputStream bais = new ByteArrayInputStream(byteBuffer); | ||
| AudioInputStream audioInputStream = new AudioInputStream(bais, format, buffer.length); | ||
| AudioSystem.write(audioInputStream, AudioFileFormat.Type.WAVE, out); | ||
| audioInputStream.close(); | ||
| } | ||
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| public static String createTestTube() { | ||
| String exception = ""; | ||
| Tube testTube = new Tube(17); | ||
| Voicebox voiceBox = new Voicebox(5); | ||
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| exception += "\nVoicebox wave: "; | ||
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| for (int i = 0; i < testTube.getSampleRate()*2; i++) { | ||
| exception += voiceBox.frame() + ", "; | ||
| } | ||
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| exception += ("outwards elements: " + Arrays.toString(testTube.out()) + "\n"); | ||
| exception += "Full array: " + "\n"; | ||
| for (int i = 0; i < testTube.getSampleRate(); i++) { | ||
| exception += testTube.getDelayLine()[i][0] + ", "; | ||
| } | ||
| exception += "\n"; | ||
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| for (int i = 0; i < testTube.getSampleRate(); i++) { | ||
| exception += testTube.getDelayLine()[i][1] + ", "; | ||
| } | ||
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| return exception; | ||
| } | ||
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| public static String createTestWave() throws IOException { | ||
| String exception = ""; | ||
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| Voicebox voiceBox = new Voicebox(1); | ||
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| final double sampleRate = 44100.0; | ||
| final double seconds = 2.0; | ||
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| exception += "Sample Rate: " + sampleRate + "\n"; | ||
| exception += "Amplitude: 1\n"; | ||
| exception += "Seconds: " + seconds + "\n"; | ||
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| float[] buffer = new float[(int)(seconds * sampleRate)]; | ||
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| for (int sample = 0; sample < buffer.length; sample++) { | ||
| buffer[sample] = voiceBox.frame(); | ||
| } | ||
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| final byte[] byteBuffer = new byte[buffer.length * 2]; | ||
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| int bufferIndex = 0; | ||
| for (int i = 0; i < byteBuffer.length; i++) { | ||
| final int x = (int)(buffer[bufferIndex++] * 32767.0); | ||
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| byteBuffer[i++] = (byte)x; | ||
| byteBuffer[i] = (byte)(x >>> 8); | ||
| } | ||
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| if (new File(System.getProperty("user.home") + "/AlgonquinTTS").exists() == false) { | ||
| new File(System.getProperty("user.home") + "/AlgonquinTTS").mkdir(); | ||
| exception += "Created new directory in " + System.getProperty("user.home") + "/AlgonquinTTS" + "\n"; | ||
| } | ||
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| File out = new File(System.getProperty("user.home") + "/AlgonquinTTS/testwave.wav"); | ||
| exception += "Created new file in " + System.getProperty("user.home") + "/AlgonquinTTS/testwave.wav" + "\n"; | ||
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| final boolean bigEndian = false; | ||
| final boolean signed = true; | ||
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| exception += "Big Endian: " + bigEndian + "\n"; | ||
| exception += "Signed: " + signed + "\n"; | ||
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| final int bits = 16; | ||
| final int channels = 1; | ||
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| exception += "Bits: " + bits + "\n"; | ||
| exception += "Channels: " + channels + "\n"; | ||
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| AudioFormat format = new AudioFormat((float)sampleRate, bits, channels, signed, bigEndian); | ||
| ByteArrayInputStream bais = new ByteArrayInputStream(byteBuffer); | ||
| AudioInputStream audioInputStream = new AudioInputStream(bais, format, buffer.length); | ||
| AudioSystem.write(audioInputStream, AudioFileFormat.Type.WAVE, out); | ||
| audioInputStream.close(); | ||
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| return exception; | ||
| } | ||
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| public static String createSchwaTubeTest() { | ||
| String exception = ""; | ||
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| int sampleRate = 2018; // L = c/F, where L is the length (17cm), c is the speed of sound (cm/s), and F is the sampling frequency | ||
| float delayLine[][] = new float[sampleRate][2]; | ||
| for (int i = 0; i < 2; i++) { | ||
| for (int j = 0; j < sampleRate; j++) { | ||
| delayLine[j][i] = (delayLine[j-1][i]); | ||
| } | ||
| } | ||
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| return exception; | ||
| } | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| package net.oijon.algonquin.tts.trm; | ||
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| public class Tube { | ||
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| private int length; | ||
| private int sampleRate; | ||
| private final int speedOfSound = 34300; //in cm/s | ||
| private double loss = 0.97; //3% loss | ||
| private float[][] delayLine; | ||
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| public Tube (int length) { | ||
| this.length = length; | ||
| // L = c/F, where L is the length (17cm), c is the speed of sound (cm/s), and F is the sampling frequency | ||
| sampleRate = speedOfSound/this.length; | ||
| //Creates the delay array based off | ||
| delayLine = new float[sampleRate][2]; | ||
| } | ||
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| //create and manage a delay line | ||
| //returns false if there is still room before sound makes its way out | ||
| //returns true if its pushing the sound out to the next tube | ||
| //this is done by checking if the last part of the array for the sample rate is filled. | ||
| public boolean push(float pushAmount) { | ||
| for (int i = 0; i < sampleRate-1; i++) { | ||
| delayLine[i+1][0] = delayLine[i][0]; | ||
| } | ||
| delayLine[0][0] = pushAmount; | ||
| delayLine[sampleRate-1][1] = -1*delayLine[sampleRate-1][0]; | ||
| for (int i = sampleRate-1; i > 0; i--) { | ||
| delayLine[i-1][0] = delayLine[i][0]; | ||
| } | ||
| if (Float.isNaN(delayLine[sampleRate-1][0])) { | ||
| return false; | ||
| } else { | ||
| return true; | ||
| } | ||
| } | ||
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| //convert to 44.1 kHz by adding new data to follow the slope. | ||
| //i could very well be misunderstanding something about this in the paper by Manzara | ||
| //if so, this method will probably be replaced. | ||
| public float[][] standardize() { | ||
| float[][] standard = new float[44100][2]; | ||
| int multiple = (int)(44100/sampleRate); | ||
| for (int h = 0; h < 2; h++) { | ||
| for (int i = 0; i < sampleRate; i++) { | ||
| float slope = 1; | ||
| if (i+1 < sampleRate) { | ||
| slope = (delayLine[i+1][h]-delayLine[i][h])/((i+1)-i); | ||
| } else { | ||
| slope = (delayLine[sampleRate-1][h]-delayLine[i][h])/((sampleRate-1)-i); | ||
| } | ||
| for (int j = 0; j < multiple; j++) { | ||
| //could be optimized more | ||
| if (j == 0) { | ||
| standard[i*multiple][h] = delayLine[i][h]; | ||
| } else { | ||
| standard[j][h] = standard[j-1][h]*slope; | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| return standard; | ||
| } | ||
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| public float[] out() { | ||
| float[] out = new float[2]; | ||
| out[0] = delayLine[sampleRate-1][0]; | ||
| out[1] = delayLine[sampleRate-1][1]; | ||
| return out; | ||
| } | ||
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| //debug only, should not be used in production | ||
| public float[][] getDelayLine() { | ||
| return delayLine; | ||
| } | ||
| public int getLength() { | ||
| return length; | ||
| } | ||
| public int getSampleRate() { | ||
| return sampleRate; | ||
| } | ||
| public double getLoss() { | ||
| return loss; | ||
| } | ||
| public void setLoss(double loss) { | ||
| this.loss = loss; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| package net.oijon.algonquin.tts.trm; | ||
|
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| public class Voicebox { | ||
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| private float intensity; | ||
| private int frameCount = 0; | ||
|
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| public Voicebox(float intensity) { | ||
| this.intensity = intensity; | ||
| } | ||
| public float frame() { | ||
| float amount = (float) ((Math.sin(frameCount*(float)(1F/8F)))*intensity); | ||
| frameCount++; | ||
| return amount; | ||
| } | ||
| public int getFrameCount() { | ||
| return frameCount; | ||
| } | ||
| public float getIntensity() { | ||
| return intensity; | ||
| } | ||
| public void setIntensity(float intensity) { | ||
| this.intensity = intensity; | ||
| } | ||
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| } |